Content-Security-Policy: frame-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com *.mozilla.org www.googletagmanager.com www.google-analytics.com www.youtube-nocookie.com trackertest.org www.surveygizmo.com accounts.firefox.com accounts.firefox.com.cn www.youtube.com; img-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com *.mozilla.org data: mozilla.org www.googletagmanager.com www.google-analytics.com adservice.google.com adservice.google.de adservice.google.dk creativecommons.org cdn-3.convertexperiments.com logs.convertexperiments.com images.ctfassets.net; child-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com *.mozilla.org www.googletagmanager.com www.google-analytics.com www.youtube-nocookie.com trackertest.org www.surveygizmo.com accounts.firefox.com accounts.firefox.com.cn www.youtube.com; style-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com *.mozilla.org 'unsafe-inline' app.convert.com; script-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com *.mozilla.org 'unsafe-inline' 'unsafe-eval' www.googletagmanager.com www.google-analytics.com tagmanager.google.com www.youtube.com s.ytimg.com cdn-3.convertexperiments.com app.convert.com data.track.convertexperiments.com 1003350.track.convertexperiments.com 1003343.track.convertexperiments.com; connect-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com *.mozilla.org www.googletagmanager.com www.google-analytics.com region1.google-analytics.com logs.convertexperiments.com 1003350.metrics.convertexperiments.com 1003343.metrics.convertexperiments.com sentry.prod.mozaws.net o1069899.sentry.io o1069899.ingest.sentry.io https://accounts.firefox.com/ stage.cjms.nonprod.cloudops.mozgcp.net cjms.services.mozilla.com; font-src 'self'; default-src 'self' *.mozilla.net *.mozilla.org *.mozilla.com *.mozilla.org X-Clacks-Overhead: GNU Terry Pratchett Etag: "f2d65cb9e0a72b2e713c5f4e624ec2c1" X-Backend-Server: bedrock-75f4585775-g8pf7.gcp-us-west1 Strict-Transport-Security: max-age=31536000 X-Content-Type-Options: nosniff X-Xss-Protection: 1; mode=block Referrer-Policy: strict-origin-when-cross-origin Via: 1.1 google, 1.1 5d4ed4df24dee2cc4c8f561e8c090690.cloudfront.net (CloudFront) X-Cache: Miss from cloudfront X-Amz-Cf-Pop: SFO5-C1 X-Amz-Cf-Id: Yz8DuOFyPa9l63XgCBJwQlo9VYl2Ch9qG9ccVATJcR6ci3doX7QbHA==表示什么意思

这是一个 HTTP 响应头里的 Content-Security-Policy（内容安全策略）。它告诉浏览器只允许加载来自特定来源的资源，比如 frame-src 只允许加载来自自己和一些特定的域名（如 *.mozilla.net, *.mozilla.org 等）的页面，img-src 只允许加载来自自己和一些特定的域名的图片，script-src 只允许加载来自自己和一些特定的域名的 JavaScript 代码等。这是一种保护 Web 应用程序免受跨站脚本攻击（XSS）、点击劫持等攻击的有效方式。